25 gal. Wow! My husband has O-Neg. blood type. They used to call him regularly reminding him to come in and donate blood. He always would until he also gave in the gallons instead of in pints. - He got into a rough patch where his health was compromised; he was just drained (not necessarily from the blood donations). Though it couldn’t have helped. He got ulcerative colitis, has gone through numerous surgeries, lost a lot of gut and ended up with an ileostomy. Finally had to just cease and desist on donation; was no longer able to be drained any more. That was over 25 years ago.
Be careful; you’ve certainly done above and beyond the call of duty.
Donating just never hurt me
I`ve always been blessed with good health,service
connected injuries but good health
Sorry about your husbands health issues
Best wishes